18666963

素因数分解:

$3^3\times 7^1\times {\mathrm{283}}^1\times {\mathrm{349}}^1$

素因数の和:648

約数の個数: 32

約数和(自身を含む): 31808000

約数和(自身を除く): 13141037

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 283, 349, 849, 1047, 1981, 2443, 2547, 3141, 5943, 7329, 7641, 9423, 17829, 21987, 53487, 65961, 98767, 296301, 691369, 888903, 2074107, 2666709, 6222321, 18666963]

約数ペア:

[(1, 18666963), (3, 6222321), (7, 2666709), (9, 2074107), (21, 888903), (27, 691369), (63, 296301), (189, 98767), (283, 65961), (349, 53487), (849, 21987), (1047, 17829), (1981, 9423), (2443, 7641), (2547, 7329), (3141, 5943)]